Great Mosque, Birgi

• The symmetry group of the tiling is 3*3 (p31m).
• All the internal angles of the constituent polygons are a multiple of 2°.
• Contains two equilateral triangles.
• There is one non-regular reflective tile (including one kite) and one reflective pair.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 226 polygons.

1. Plate 67, figs 151,152 (Great Mosque, Birgi, Turkey. Fainece mosaic, mihrab) of Bakırer, Ömür. Onüç ve ondördüncü yüzyıllarda Anadolu mihrabları, Türk Tarih Kurumu Basımevi, 1976. [bakirer] {Ankara}

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